netdev - Re: [PATCH iwl-next v5 1/9] net: ethtool: mm: extract stmmac verification logic into common library

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Message-ID: <20250221104333.6s7nvn2wwco3axr3@skbuf>
Date: Fri, 21 Feb 2025 12:43:33 +0200
From: Vladimir Oltean <vladimir.oltean@....com>
To: Furong Xu <0x1207@...il.com>,
	Faizal Rahim <faizal.abdul.rahim@...ux.intel.com>
Cc: Tony Nguyen <anthony.l.nguyen@...el.com>,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Simon Horman <horms@...nel.org>,
	Russell King <linux@...linux.org.uk>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>,
	Russell King <rmk+kernel@...linux.org.uk>,
	Serge Semin <fancer.lancer@...il.com>,
	Xiaolei Wang <xiaolei.wang@...driver.com>,
	Suraj Jaiswal <quic_jsuraj@...cinc.com>,
	Kory Maincent <kory.maincent@...tlin.com>,
	Gal Pressman <gal@...dia.com>,
	Jesper Nilsson <jesper.nilsson@...s.com>,
	Andrew Halaney <ahalaney@...hat.com>,
	Choong Yong Liang <yong.liang.choong@...ux.intel.com>,
	Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>,
	Vinicius Costa Gomes <vinicius.gomes@...el.com>,
	intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org, bpf@...r.kernel.org
Subject: Re: [PATCH iwl-next v5 1/9] net: ethtool: mm: extract stmmac
 verification logic into common library

On Fri, Feb 21, 2025 at 06:24:09PM +0800, Furong Xu wrote:
> Your fix is better when link is up/down, so I vote verify_enabled.

Hmmm... I thought this was a bug in stmmac that was carried over to
ethtool_mmsv, but it looks like it isn't.

In fact, looking at the original refactoring patch I had attached in
this email:
https://lore.kernel.org/netdev/20241217002254.lyakuia32jbnva46@skbuf/

these 2 lines in ethtool_mmsv_link_state_handle() didn't exist at all.

	} else {
>>>>		mmsv->status = ETHTOOL_MM_VERIFY_STATUS_INITIAL;
>>>>		mmsv->verify_retries = ETHTOOL_MM_MAX_VERIFY_RETRIES;

		/* No link or pMAC not enabled */
		ethtool_mmsv_configure_pmac(mmsv, false);
		ethtool_mmsv_configure_tx(mmsv, false);
	}

Faizal, could you remind me why they were added? I don't see this
explained in change logs.